350-501 Architecture Practice Question
A service provider is deploying L3VPN using BGP/MPLS. Which mechanism ensures customer isolation in the provider network?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Virtual Routing and Forwarding (VRF)
VRF (Virtual Routing and Forwarding) creates separate routing tables per customer, ensuring isolation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Virtual Routing and Forwarding (VRF)
Why this is correct
VRF isolates routing and forwarding per customer.
- ✗
Pseudowire
Why it's wrong here
Pseudowire is for L2VPN.
- ✗
MP-BGP
Why it's wrong here
MP-BGP carries VPNv4 routes, but VRF provides isolation.
- ✗
MPLS labels
Why it's wrong here
Labels are for forwarding, not isolation.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-501 exam.